Prade, Thomas
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences
Abstract
The Bioform project introduced three types of bio-based fillers: 1) cellulosic fiber-based filler/chips, 2) lignin-based filler, and 3) biochar-based filler, with the goal of creating vacuum-formable materials to replace fossil-based plastics with bio-based alternatives. These materials were designed to meet the processability and performance requirements for automotive applications. The project incorporated high bio-based content into Acrylonitrile Butadiene Styrene (ABS), achieving a significant carbon footprint reduction of up to 40%. Testing revealed that long, fiber-shaped fillers were unsuitable for vacuum forming, as they negatively affected formability. However, biochar and lignin-based composites demonstrated good processability for both extrusion and vacuum forming, resulting in the successful production of a miniature roof box prototype. A thorough evaluation of the material properties showed both benefits and challenges. The composites exhibited a moderate increase in modulus, indicating enhanced stiffness, and a significant improvement in flame retardancy. On the downside, the strength and ductility of the composites were reduced. This reduction was addressed by introducing a compatibilizer to enhance ductility. The developed materials showed strong potential for industrial scalability and recyclability. A vacuum-formed heater cover demonstrator was successfully produced.
Published in
Title: PIAE EUROPE 2025
Publisher: VDI Verlag GMBH
Conference
International Congress Plastic In Automotive Engineering, PIAE 2025, 26 March - 27 March, 2025, Mannheim, Germany
SLU Authors
UKÄ Subject classification
Bio Materials
Publication identifier
- DOI: https://doi.org/10.51202/9783181024461-287
- ISBN: 978-3-18-092446-5
- eISBN: 978-3-18-102446-1
Permanent link to this page (URI)
https://res.slu.se/id/publ/142898